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Tucson Equinox fault codes

23 codes from the Tucson manual for the Equinox shower pump. Pick one for what it means, the likely causes and where to start.

CodeWhat it means
2.AAir in the system (noise)
2.CFlow rate too high (water's velocity)
2AAir in the system (noise)
3.AAir trapped in pump (noise in pump)
3.CVibration from pump mounting surface (noise in pump)
3AAir trapped in pump (noise in pump)
3CVibration from pump mounting surface (noise in pump)
4.AOutlet open, tap or leak (pump fails to stop)
4.DAir trapped in the system (pump fails to stop)
4AOutlet open, tap or leak causing pump to fail to stop
4DAir trapped in the system (pump fails to stop)
5.AWater temperature too high (unstable temperature)
5AWater temperature too high (unstable water temperature)
6.AStrainer filters are blocked (no water delivered)
6.CAir locked (no water delivered)
6AStrainer filters are blocked (pump runs but delivers no water)
6CAir locked (pump runs but delivers no water)
7.AIncorrect pipework sizing (insufficient flow rate)
7.FStrainer filters are blocked/debris (insufficient flow rate)
7AIncorrect pipework sizing (insufficient flow rate)
7FStrainer filters blocked/debris (insufficient flow rate)
9.AHose connection loose/damaged O-rings or not fitted correctly (flexible hose leak)
9AHose connection loose/damaged O-rings or not fitted correctly (flexible hose...